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Re: Premium upgrade vs. stock ST-70

If I'm understanding your question you want to just install the power supply on the ST-70? I don't beleive that can be done being the entire amp has been re-engineered and re-wired with the ccda board. the sonic differences are again, for the power supply board, an extreme improvement in dynamics. There is no lose of "steam" in any frequency. Even with low volume you can feel "punch".

I've also felt on of the greatest improvements to the ST-70 was the preamp. I driving it with a PAS with full curcio mod and most importantly the power module. This power module improvement produces the same effect in both units. Well worth it.
charles


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